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tdemultimedia/juk/systemtray.cpp

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/***************************************************************************
copyright : (C) 2002 by Daniel Molkentin
email : molkentin@kde.org
copyright : (C) 2002 - 2004 by Scott Wheeler
email : wheeler@kde.org
***************************************************************************/
/***************************************************************************
* *
* This program is free software; you can redistribute it and/or modify *
* it under the terms of the GNU General Public License as published by *
* the Free Software Foundation; either version 2 of the License, or *
* (at your option) any later version. *
* *
***************************************************************************/
#include <klocale.h>
#include <kiconloader.h>
#include <kpassivepopup.h>
#include <kiconeffect.h>
#include <kaction.h>
#include <kpopupmenu.h>
#include <kglobalsettings.h>
#include <kdebug.h>
#include <tqvbox.h>
#include <tqtimer.h>
#include <tqcolor.h>
#include <tqpushbutton.h>
#include <tqtooltip.h>
#include <tqpainter.h>
#include <tqvaluevector.h>
#include <tqstylesheet.h>
#include <tqpalette.h>
#include <netwm.h>
#include "tag.h"
#include "systemtray.h"
#include "actioncollection.h"
#include "playermanager.h"
#include "collectionlist.h"
#include "coverinfo.h"
using namespace ActionCollection;
static bool copyImage(TQImage &dest, TQImage &src, int x, int y);
class FlickerFreeLabel : public TQLabel
{
public:
FlickerFreeLabel(const TQString &text, TQWidget *parent, const char *name = 0) :
TQLabel(text, parent, name)
{
m_textColor = paletteForegroundColor();
m_bgColor = parentWidget()->paletteBackgroundColor();
setBackgroundMode(NoBackground);
}
TQColor textColor() const
{
return m_textColor;
}
TQColor backgroundColor() const
{
return m_bgColor;
}
protected:
virtual void drawContents(TQPainter *p)
{
// We want to intercept the drawContents call and draw on a pixmap
// instead of the window to keep flicker to an absolute minimum.
// Since TQt doesn't refresh the background, we need to do so
// ourselves.
TQPixmap pix(size());
TQPainter pixPainter(&pix);
pixPainter.fillRect(rect(), m_bgColor);
TQLabel::drawContents(&pixPainter);
bitBlt(p->device(), TQPoint(0, 0), &pix, rect(), CopyROP);
}
private:
TQColor m_textColor;
TQColor m_bgColor;
};
PassiveInfo::PassiveInfo(TQWidget *parent, const char *name) :
KPassivePopup(parent, name), m_timer(new TQTimer), m_justDie(false)
{
// I'm so sick and tired of KPassivePopup screwing this up
// that I'll just handle the timeout myself, thank you very much.
KPassivePopup::setTimeout(0);
connect(m_timer, TQT_SIGNAL(timeout()), TQT_SLOT(timerExpired()));
}
void PassiveInfo::setTimeout(int delay)
{
m_timer->changeInterval(delay);
}
void PassiveInfo::show()
{
KPassivePopup::show();
m_timer->start(3500);
}
void PassiveInfo::timerExpired()
{
// If m_justDie is set, we should just go, otherwise we should emit the
// signal and wait for the system tray to delete us.
if(m_justDie)
hide();
else
emit timeExpired();
}
void PassiveInfo::enterEvent(TQEvent *)
{
m_timer->stop();
emit mouseEntered();
}
void PassiveInfo::leaveEvent(TQEvent *)
{
m_justDie = true;
m_timer->start(50);
}
////////////////////////////////////////////////////////////////////////////////
// public methods
////////////////////////////////////////////////////////////////////////////////
SystemTray::SystemTray(TQWidget *parent, const char *name) : KSystemTray(parent, name),
m_popup(0),
m_fadeTimer(0),
m_fade(true)
{
// This should be initialized to the number of labels that are used.
m_labels.reserve(3);
m_appPix = loadIcon("juk_dock");
m_playPix = createPixmap("player_play");
m_pausePix = createPixmap("player_pause");
m_forwardPix = loadIcon("player_end");
m_backPix = loadIcon("player_start");
setPixmap(m_appPix);
setToolTip();
// Just create this here so that it show up in the DCOP interface and the key
// bindings dialog.
new KAction(i18n("Redisplay Popup"), KShortcut(), TQT_TQOBJECT(this),
TQT_SLOT(slotPlay()), ActionCollection::actions(), "showPopup");
KPopupMenu *cm = contextMenu();
connect(PlayerManager::instance(), TQT_SIGNAL(signalPlay()), this, TQT_SLOT(slotPlay()));
connect(PlayerManager::instance(), TQT_SIGNAL(signalPause()), this, TQT_SLOT(slotPause()));
connect(PlayerManager::instance(), TQT_SIGNAL(signalStop()), this, TQT_SLOT(slotStop()));
action("play")->plug(cm);
action("pause")->plug(cm);
action("stop")->plug(cm);
action("forward")->plug(cm);
action("back")->plug(cm);
cm->insertSeparator();
// Pity the actionCollection doesn't keep track of what sub-menus it has.
KActionMenu *menu = new KActionMenu(i18n("&Random Play"), TQT_TQOBJECT(this));
menu->insert(action("disableRandomPlay"));
menu->insert(action("randomPlay"));
menu->insert(action("albumRandomPlay"));
menu->plug(cm);
action("togglePopups")->plug(cm);
m_fadeTimer = new TQTimer(this, "systrayFadeTimer");
connect(m_fadeTimer, TQT_SIGNAL(timeout()), TQT_SLOT(slotNextStep()));
if(PlayerManager::instance()->playing())
slotPlay();
else if(PlayerManager::instance()->paused())
slotPause();
}
SystemTray::~SystemTray()
{
}
////////////////////////////////////////////////////////////////////////////////
// public slots
////////////////////////////////////////////////////////////////////////////////
void SystemTray::slotPlay()
{
if(!PlayerManager::instance()->playing())
return;
TQPixmap cover = PlayerManager::instance()->playingFile().coverInfo()->pixmap(CoverInfo::Thumbnail);
setPixmap(m_playPix);
setToolTip(PlayerManager::instance()->playingString(), cover);
createPopup();
}
void SystemTray::slotTogglePopup()
{
if(m_popup && m_popup->view()->isVisible())
m_popup->setTimeout(50);
else
slotPlay();
}
void SystemTray::slotPopupLargeCover()
{
if(!PlayerManager::instance()->playing())
return;
FileHandle playingFile = PlayerManager::instance()->playingFile();
playingFile.coverInfo()->popup();
}
void SystemTray::slotStop()
{
setPixmap(m_appPix);
setToolTip();
delete m_popup;
m_popup = 0;
}
void SystemTray::slotPopupDestroyed()
{
for(unsigned i = 0; i < m_labels.capacity(); ++i)
m_labels[i] = 0;
}
void SystemTray::slotNextStep()
{
TQColor result;
++m_step;
// If we're not fading, immediately show the labels
if(!m_fade)
m_step = STEPS;
result = interpolateColor(m_step);
for(unsigned i = 0; i < m_labels.capacity() && m_labels[i]; ++i)
m_labels[i]->setPaletteForegroundColor(result);
if(m_step == STEPS) {
m_step = 0;
m_fadeTimer->stop();
emit fadeDone();
}
}
void SystemTray::slotFadeOut()
{
m_startColor = m_labels[0]->textColor();
m_endColor = m_labels[0]->backgroundColor();
connect(this, TQT_SIGNAL(fadeDone()), m_popup, TQT_SLOT(hide()));
connect(m_popup, TQT_SIGNAL(mouseEntered()), this, TQT_SLOT(slotMouseInPopup()));
m_fadeTimer->start(1500 / STEPS);
}
// If we receive this signal, it's because we were called during fade out.
// That means there is a single shot timer about to call slotNextStep, so we
// don't have to do it ourselves.
void SystemTray::slotMouseInPopup()
{
m_endColor = m_labels[0]->textColor();
disconnect(TQT_SIGNAL(fadeDone()));
m_step = STEPS - 1; // Simulate end of fade to solid text
slotNextStep();
}
////////////////////////////////////////////////////////////////////////////////
// private methods
////////////////////////////////////////////////////////////////////////////////
TQVBox *SystemTray::createPopupLayout(TQWidget *parent, const FileHandle &file)
{
TQVBox *infoBox = 0;
if(buttonsToLeft()) {
// They go to the left because JuK is on that side
createButtonBox(parent);
addSeparatorLine(parent);
infoBox = new TQVBox(parent);
// Another line, and the cover, if there's a cover, and if
// it's selected to be shown
if(file.coverInfo()->hasCover()) {
addSeparatorLine(parent);
addCoverButton(parent, file.coverInfo()->pixmap(CoverInfo::Thumbnail));
}
}
else {
// Like above, but reversed.
if(file.coverInfo()->hasCover()) {
addCoverButton(parent, file.coverInfo()->pixmap(CoverInfo::Thumbnail));
addSeparatorLine(parent);
}
infoBox = new TQVBox(parent);
addSeparatorLine(parent);
createButtonBox(parent);
}
infoBox->setSpacing(3);
infoBox->setMargin(3);
return infoBox;
}
void SystemTray::createPopup()
{
FileHandle playingFile = PlayerManager::instance()->playingFile();
Tag *playingInfo = playingFile.tag();
// If the action exists and it's checked, do our stuff
if(!action<KToggleAction>("togglePopups")->isChecked())
return;
delete m_popup;
m_popup = 0;
m_fadeTimer->stop();
// This will be reset after this function call by slot(Forward|Back)
// so it's safe to set it true here.
m_fade = true;
m_step = 0;
m_popup = new PassiveInfo(this);
connect(m_popup, TQT_SIGNAL(destroyed()), TQT_SLOT(slotPopupDestroyed()));
connect(m_popup, TQT_SIGNAL(timeExpired()), TQT_SLOT(slotFadeOut()));
TQHBox *box = new TQHBox(m_popup, "popupMainLayout");
box->setSpacing(15); // Add space between text and buttons
TQVBox *infoBox = createPopupLayout(box, playingFile);
for(unsigned i = 0; i < m_labels.capacity(); ++i) {
m_labels[i] = new FlickerFreeLabel(" ", infoBox);
m_labels[i]->setAlignment(AlignRight | AlignVCenter);
}
// We don't want an autodelete popup. There are times when it will need
// to be hidden before the timeout.
m_popup->setAutoDelete(false);
// We have to set the text of the labels after all of the
// widgets have been added in order for the width to be calculated
// correctly.
int labelCount = 0;
TQString title = TQStyleSheet::escape(playingInfo->title());
m_labels[labelCount++]->setText(TQString("<qt><nobr><h2>%1</h2></nobr><qt>").arg(title));
if(!playingInfo->artist().isEmpty())
m_labels[labelCount++]->setText(playingInfo->artist());
if(!playingInfo->album().isEmpty()) {
TQString album = TQStyleSheet::escape(playingInfo->album());
TQString s = playingInfo->year() > 0
? TQString("<qt><nobr>%1 (%2)</nobr></qt>").arg(album).arg(playingInfo->year())
: TQString("<qt><nobr>%1</nobr></qt>").arg(album);
m_labels[labelCount++]->setText(s);
}
m_startColor = m_labels[0]->backgroundColor();
m_endColor = m_labels[0]->textColor();
slotNextStep();
m_fadeTimer->start(1500 / STEPS);
m_popup->setView(box);
m_popup->show();
}
bool SystemTray::buttonsToLeft() const
{
// The following code was nicked from kpassivepopup.cpp
NETWinInfo ni(qt_xdisplay(), winId(), qt_xrootwin(),
NET::WMIconGeometry | NET::WMKDESystemTrayWinFor);
NETRect frame, win;
ni.kdeGeometry(frame, win);
TQRect bounds = KGlobalSettings::desktopGeometry(TQPoint(win.pos.x, win.pos.y));
// This seems to accurately guess what side of the icon that
// KPassivePopup will popup on.
return(win.pos.x < bounds.center().x());
}
TQPixmap SystemTray::createPixmap(const TQString &pixName)
{
TQPixmap bgPix = m_appPix;
TQPixmap fgPix = SmallIcon(pixName);
TQImage bgImage = bgPix.convertToImage(); // Probably 22x22
TQImage fgImage = fgPix.convertToImage(); // Should be 16x16
KIconEffect::semiTransparent(bgImage);
copyImage(bgImage, fgImage, (bgImage.width() - fgImage.width()) / 2,
(bgImage.height() - fgImage.height()) / 2);
bgPix.convertFromImage(bgImage);
return bgPix;
}
void SystemTray::createButtonBox(TQWidget *parent)
{
TQVBox *buttonBox = new TQVBox(parent);
buttonBox->setSpacing(3);
TQPushButton *forwardButton = new TQPushButton(m_forwardPix, 0, buttonBox, "popup_forward");
forwardButton->setFlat(true);
connect(forwardButton, TQT_SIGNAL(clicked()), TQT_SLOT(slotForward()));
TQPushButton *backButton = new TQPushButton(m_backPix, 0, buttonBox, "popup_back");
backButton->setFlat(true);
connect(backButton, TQT_SIGNAL(clicked()), TQT_SLOT(slotBack()));
}
/**
* What happens here is that the action->activate() call will end up invoking
* createPopup(), which sets m_fade to true. Before the text starts fading
* control returns to this function, which resets m_fade to false.
*/
void SystemTray::slotBack()
{
action("back")->activate();
m_fade = false;
}
void SystemTray::slotForward()
{
action("forward")->activate();
m_fade = false;
}
void SystemTray::addSeparatorLine(TQWidget *parent)
{
TQFrame *line = new TQFrame(parent);
line->setFrameShape(TQFrame::VLine);
// Cover art takes up 80 pixels, make sure we take up at least 80 pixels
// even if we don't show the cover art for consistency.
line->setMinimumHeight(80);
}
void SystemTray::addCoverButton(TQWidget *parent, const TQPixmap &cover)
{
TQPushButton *coverButton = new TQPushButton(parent);
coverButton->setPixmap(cover);
coverButton->setFixedSize(cover.size());
coverButton->setFlat(true);
connect(coverButton, TQT_SIGNAL(clicked()), this, TQT_SLOT(slotPopupLargeCover()));
}
TQColor SystemTray::interpolateColor(int step, int steps)
{
if(step < 0)
return m_startColor;
if(step >= steps)
return m_endColor;
// TODO: Perhaps the algorithm here could be better? For example, it might
// make sense to go rather quickly from start to end and then slow down
// the progression.
return TQColor(
(step * m_endColor.red() + (steps - step) * m_startColor.red()) / steps,
(step * m_endColor.green() + (steps - step) * m_startColor.green()) / steps,
(step * m_endColor.blue() + (steps - step) * m_startColor.blue()) / steps
);
}
void SystemTray::setToolTip(const TQString &tip, const TQPixmap &cover)
{
TQToolTip::remove(this);
if(tip.isNull())
TQToolTip::add(this, i18n("JuK"));
else {
TQPixmap myCover = cover;
if(cover.isNull())
myCover = DesktopIcon("juk");
TQImage coverImage = myCover.convertToImage();
if(coverImage.size().width() > 32 || coverImage.size().height() > 32)
coverImage = coverImage.smoothScale(32, 32);
TQMimeSourceFactory::defaultFactory()->setImage("tipCover", coverImage);
TQString html = i18n("%1 is Cover Art, %2 is the playing track, %3 is the appname",
"<center><table cellspacing=\"2\"><tr><td valign=\"middle\">%1</td>"
"<td valign=\"middle\">%2</td></tr></table><em>%3</em></center>");
html = html.arg("<img valign=\"middle\" src=\"tipCover\"");
html = html.arg(TQString("<nobr>%1</nobr>").arg(tip), i18n("JuK"));
TQToolTip::add(this, html);
}
}
void SystemTray::wheelEvent(TQWheelEvent *e)
{
if(e->orientation() ==Qt::Horizontal)
return;
// I already know the type here, but this file doesn't (and I don't want it
// to) know about the JuK class, so a static_cast won't work, and I was told
// that a reinterpret_cast isn't portable when combined with multiple
// inheritance. (This is why I don't check the result.)
switch(e->state()) {
case ShiftButton:
if(e->delta() > 0)
action("volumeUp")->activate();
else
action("volumeDown")->activate();
break;
default:
if(e->delta() > 0)
action("forward")->activate();
else
action("back")->activate();
break;
}
e->accept();
}
/*
* Reimplemented this in order to use the middle mouse button
*/
void SystemTray::mousePressEvent(TQMouseEvent *e)
{
switch(e->button()) {
case Qt::LeftButton:
case Qt::RightButton:
default:
KSystemTray::mousePressEvent(e);
break;
case Qt::MidButton:
if(!TQT_TQRECT_OBJECT(rect()).contains(e->pos()))
return;
if(action("pause")->isEnabled())
action("pause")->activate();
else
action("play")->activate();
break;
}
}
/*
* This function copies the entirety of src into dest, starting in
* dest at x and y. This function exists because I was unable to find
* a function like it in either TQImage or kdefx
*/
static bool copyImage(TQImage &dest, TQImage &src, int x, int y)
{
if(dest.depth() != src.depth())
return false;
if((x + src.width()) >= dest.width())
return false;
if((y + src.height()) >= dest.height())
return false;
// We want to use KIconEffect::overlay to do this, since it handles
// alpha, but the images need to be the same size. We can handle that.
TQImage large_src(dest);
// It would perhaps be better to create large_src based on a size, but
// this is the easiest way to make a new image with the same depth, size,
// etc.
large_src.detach();
// However, we do have to specifically ensure that setAlphaBuffer is set
// to false
large_src.setAlphaBuffer(false);
large_src.fill(0); // All transparent pixels
large_src.setAlphaBuffer(true);
int w = src.width();
int h = src.height();
for(int dx = 0; dx < w; dx++)
for(int dy = 0; dy < h; dy++)
large_src.setPixel(dx + x, dy + y, src.pixel(dx, dy));
// Apply effect to image
KIconEffect::overlay(dest, large_src);
return true;
}
#include "systemtray.moc"
// vim: et sw=4 ts=8
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